Cowboys DB Moves: Coyle Signs, Mullen to Lamar Jackson’s Ravens

The Dallas Cowboys signed Treyvon Mullen in December when a slew of injuries affected the secondary and the team needed depth. But he’s out … and Tyler Coyle is in. FRISCO – The Baltimore Ravens have claimed former Dallas Cowboys cornerback Trayvon Mullen off waivers. Mullen, as it happens, is also the cousin of Ravens quarterback Lamar Jackson. … though…